Toyota Sienna Service Manual: Problem symptoms table
HINT:
- Use the table below to help determine the cause of the problem symptom. The likely causes of the problem are indicated in descending order. Check each suspected area in order. Repair or replace faulty parts or perform adjustments as necessary.
- Inspect the fuse and relay related to this system before inspecting the suspected areas below.
CRUISE CONTROL SYSTEM
Road test
1. PROBLEM SYMPTOM CONFIRMATION
Inspect the SET function.
Turn the cruise control main switch on.
Drive at the required speed between 40 km/h
(25 mph) and 200 km/h ...
Terminals of ECM
1. CHECK ECM
...
Other materials:
Combination Meter ECU Communication Stop
DTC B1271 Combination Meter ECU Communication Stop
DESCRIPTION
DTC B1271 is output when communication between the combination meter and the
multiplex network
gateway ECU stops for more than 10 seconds.
DTC No.
DTC Detection Condition
Trouble Area
B1271
...
Communication Error of Yaw Rate Sensor
DTC U0123 Communication Error of Yaw Rate Sensor
DESCRIPTION
This circuit detects the yaw rate of the vehicle and transmits its signal to
the skid control ECU and
distance control ECU.
DTC No.
DTC Detection Condition
Trouble Area
U0123
While the dynamic ...
Oxygen (A/F) Sensor Heater Control Circuit
Low/ Oxygen (A/F) Sensor Heater Control Circuit
High
DTC P0031 Oxygen (A/F) Sensor Heater Control Circuit
Low (Bank 1 Sensor 1)
DTC P0032 Oxygen (A/F) Sensor Heater Control Circuit
High (Bank 1 Sensor 1)
DTC P0051 Oxygen (A/F) Sensor Heater Control Circuit
Low (Bank 2 Sensor 1)
DTC P0052 Oxygen (A/F) Sensor Heater Control Circuit
High (Bank 2 S ...
